./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix042.oepc.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix042.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 13:00:11,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 13:00:11,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 13:00:11,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 13:00:11,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 13:00:11,707 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 13:00:11,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 13:00:11,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 13:00:11,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 13:00:11,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 13:00:11,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 13:00:11,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 13:00:11,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 13:00:11,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 13:00:11,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 13:00:11,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 13:00:11,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 13:00:11,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 13:00:11,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 13:00:11,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 13:00:11,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 13:00:11,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 13:00:11,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 13:00:11,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 13:00:11,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 13:00:11,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 13:00:11,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 13:00:11,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 13:00:11,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 13:00:11,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 13:00:11,742 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 13:00:11,743 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 13:00:11,744 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 13:00:11,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 13:00:11,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 13:00:11,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 13:00:11,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 13:00:11,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 13:00:11,746 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 13:00:11,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 13:00:11,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 13:00:11,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 13:00:11,773 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 13:00:11,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 13:00:11,774 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 13:00:11,774 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 13:00:11,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 13:00:11,775 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 13:00:11,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 13:00:11,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 13:00:11,776 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 13:00:11,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 13:00:11,777 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 13:00:11,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 13:00:11,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 13:00:11,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 13:00:11,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 13:00:11,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 13:00:11,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 13:00:11,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 13:00:11,778 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 13:00:11,778 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 13:00:11,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 13:00:11,778 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 13:00:11,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 13:00:11,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 13:00:11,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 13:00:11,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 13:00:11,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:00:11,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 13:00:11,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 13:00:11,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 13:00:11,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 13:00:11,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 13:00:11,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 13:00:11,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 13:00:11,780 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 13:00:11,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 13:00:11,781 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 13:00:11,781 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-30 13:00:12,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 13:00:12,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 13:00:12,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 13:00:12,029 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 13:00:12,029 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 13:00:12,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix042.oepc.i [2023-08-30 13:00:13,047 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 13:00:13,266 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 13:00:13,267 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix042.oepc.i [2023-08-30 13:00:13,278 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b90c660/f7e954fce6ef4f90a678e74027804694/FLAG5baa4634b [2023-08-30 13:00:13,289 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38b90c660/f7e954fce6ef4f90a678e74027804694 [2023-08-30 13:00:13,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 13:00:13,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 13:00:13,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 13:00:13,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 13:00:13,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 13:00:13,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5605921e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13, skipping insertion in model container [2023-08-30 13:00:13,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 13:00:13,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 13:00:13,451 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix042.oepc.i[945,958] [2023-08-30 13:00:13,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:00:13,627 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 13:00:13,642 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix042.oepc.i[945,958] [2023-08-30 13:00:13,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 13:00:13,716 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:00:13,716 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 13:00:13,720 INFO L208 MainTranslator]: Completed translation [2023-08-30 13:00:13,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13 WrapperNode [2023-08-30 13:00:13,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 13:00:13,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 13:00:13,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 13:00:13,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 13:00:13,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,778 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 132 [2023-08-30 13:00:13,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 13:00:13,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 13:00:13,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 13:00:13,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 13:00:13,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 13:00:13,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 13:00:13,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 13:00:13,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 13:00:13,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (1/1) ... [2023-08-30 13:00:13,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 13:00:13,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 13:00:13,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 13:00:13,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 13:00:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 13:00:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-30 13:00:13,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 13:00:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 13:00:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 13:00:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-30 13:00:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-30 13:00:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-30 13:00:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-30 13:00:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-08-30 13:00:13,995 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-08-30 13:00:13,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 13:00:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-30 13:00:13,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 13:00:13,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 13:00:13,997 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 13:00:14,121 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 13:00:14,123 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 13:00:14,370 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 13:00:14,558 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 13:00:14,564 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 13:00:14,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:14 BoogieIcfgContainer [2023-08-30 13:00:14,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 13:00:14,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 13:00:14,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 13:00:14,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 13:00:14,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 01:00:13" (1/3) ... [2023-08-30 13:00:14,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c0afcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:00:14, skipping insertion in model container [2023-08-30 13:00:14,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 01:00:13" (2/3) ... [2023-08-30 13:00:14,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c0afcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 01:00:14, skipping insertion in model container [2023-08-30 13:00:14,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:14" (3/3) ... [2023-08-30 13:00:14,575 INFO L112 eAbstractionObserver]: Analyzing ICFG mix042.oepc.i [2023-08-30 13:00:14,584 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 13:00:14,591 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 13:00:14,592 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-30 13:00:14,592 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 13:00:14,662 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 13:00:14,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 124 places, 116 transitions, 247 flow [2023-08-30 13:00:14,744 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2023-08-30 13:00:14,744 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:14,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2023-08-30 13:00:14,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 116 transitions, 247 flow [2023-08-30 13:00:14,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 113 transitions, 235 flow [2023-08-30 13:00:14,757 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 13:00:14,768 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 113 transitions, 235 flow [2023-08-30 13:00:14,771 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 113 transitions, 235 flow [2023-08-30 13:00:14,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 235 flow [2023-08-30 13:00:14,803 INFO L130 PetriNetUnfolder]: 2/113 cut-off events. [2023-08-30 13:00:14,804 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:14,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 77 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2023-08-30 13:00:14,806 INFO L119 LiptonReduction]: Number of co-enabled transitions 2560 [2023-08-30 13:00:17,557 INFO L134 LiptonReduction]: Checked pairs total: 8941 [2023-08-30 13:00:17,557 INFO L136 LiptonReduction]: Total number of compositions: 93 [2023-08-30 13:00:17,575 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 13:00:17,581 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d67780e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 13:00:17,582 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-30 13:00:17,587 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-30 13:00:17,588 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 13:00:17,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:17,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-30 13:00:17,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:00:17,594 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:17,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2121057880, now seen corresponding path program 1 times [2023-08-30 13:00:17,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:17,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96305394] [2023-08-30 13:00:17,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:17,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:17,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:00:17,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:17,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96305394] [2023-08-30 13:00:17,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96305394] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:17,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:17,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-30 13:00:17,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836430658] [2023-08-30 13:00:17,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:17,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-30 13:00:17,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:17,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-30 13:00:17,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-30 13:00:17,938 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2023-08-30 13:00:17,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 67 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:17,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:17,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2023-08-30 13:00:17,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:18,171 INFO L130 PetriNetUnfolder]: 1101/1715 cut-off events. [2023-08-30 13:00:18,172 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-08-30 13:00:18,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3472 conditions, 1715 events. 1101/1715 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 8284 event pairs, 369 based on Foata normal form. 0/1413 useless extension candidates. Maximal degree in co-relation 3461. Up to 1241 conditions per place. [2023-08-30 13:00:18,182 INFO L137 encePairwiseOnDemand]: 198/209 looper letters, 38 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2023-08-30 13:00:18,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 189 flow [2023-08-30 13:00:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-30 13:00:18,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-30 13:00:18,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2023-08-30 13:00:18,192 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.529505582137161 [2023-08-30 13:00:18,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2023-08-30 13:00:18,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2023-08-30 13:00:18,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:18,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2023-08-30 13:00:18,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,202 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,203 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 67 flow. Second operand 3 states and 332 transitions. [2023-08-30 13:00:18,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 189 flow [2023-08-30 13:00:18,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 45 transitions, 184 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 13:00:18,207 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 98 flow [2023-08-30 13:00:18,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2023-08-30 13:00:18,211 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2023-08-30 13:00:18,211 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 98 flow [2023-08-30 13:00:18,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:18,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:18,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 13:00:18,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:00:18,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:18,213 INFO L85 PathProgramCache]: Analyzing trace with hash 484183890, now seen corresponding path program 1 times [2023-08-30 13:00:18,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:18,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992119961] [2023-08-30 13:00:18,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:18,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:00:18,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:18,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992119961] [2023-08-30 13:00:18,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992119961] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:18,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:18,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:00:18,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365187030] [2023-08-30 13:00:18,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:18,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:00:18,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:18,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:00:18,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:00:18,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2023-08-30 13:00:18,298 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,298 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:18,298 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2023-08-30 13:00:18,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:18,492 INFO L130 PetriNetUnfolder]: 885/1367 cut-off events. [2023-08-30 13:00:18,492 INFO L131 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2023-08-30 13:00:18,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3304 conditions, 1367 events. 885/1367 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 6283 event pairs, 321 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 3293. Up to 892 conditions per place. [2023-08-30 13:00:18,498 INFO L137 encePairwiseOnDemand]: 202/209 looper letters, 35 selfloop transitions, 4 changer transitions 0/42 dead transitions. [2023-08-30 13:00:18,498 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 42 transitions, 196 flow [2023-08-30 13:00:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:00:18,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:00:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 418 transitions. [2023-08-30 13:00:18,501 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-30 13:00:18,501 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 418 transitions. [2023-08-30 13:00:18,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 418 transitions. [2023-08-30 13:00:18,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:18,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 418 transitions. [2023-08-30 13:00:18,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,504 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,505 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 98 flow. Second operand 4 states and 418 transitions. [2023-08-30 13:00:18,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 42 transitions, 196 flow [2023-08-30 13:00:18,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 42 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-30 13:00:18,506 INFO L231 Difference]: Finished difference. Result has 37 places, 28 transitions, 90 flow [2023-08-30 13:00:18,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2023-08-30 13:00:18,507 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -1 predicate places. [2023-08-30 13:00:18,507 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 90 flow [2023-08-30 13:00:18,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:18,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:18,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 13:00:18,508 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:00:18,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:18,508 INFO L85 PathProgramCache]: Analyzing trace with hash 484183891, now seen corresponding path program 1 times [2023-08-30 13:00:18,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:18,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129029669] [2023-08-30 13:00:18,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:18,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:00:18,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:18,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129029669] [2023-08-30 13:00:18,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129029669] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:18,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:18,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-30 13:00:18,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302746169] [2023-08-30 13:00:18,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:18,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-30 13:00:18,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:18,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-30 13:00:18,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-30 13:00:18,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2023-08-30 13:00:18,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:18,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2023-08-30 13:00:18,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:18,729 INFO L130 PetriNetUnfolder]: 720/1106 cut-off events. [2023-08-30 13:00:18,729 INFO L131 PetriNetUnfolder]: For 358/358 co-relation queries the response was YES. [2023-08-30 13:00:18,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2647 conditions, 1106 events. 720/1106 cut-off events. For 358/358 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4955 event pairs, 293 based on Foata normal form. 0/1080 useless extension candidates. Maximal degree in co-relation 2635. Up to 462 conditions per place. [2023-08-30 13:00:18,734 INFO L137 encePairwiseOnDemand]: 202/209 looper letters, 44 selfloop transitions, 7 changer transitions 3/57 dead transitions. [2023-08-30 13:00:18,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 57 transitions, 268 flow [2023-08-30 13:00:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-30 13:00:18,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-30 13:00:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2023-08-30 13:00:18,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5179425837320574 [2023-08-30 13:00:18,736 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 433 transitions. [2023-08-30 13:00:18,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 433 transitions. [2023-08-30 13:00:18,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:18,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 433 transitions. [2023-08-30 13:00:18,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,739 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,739 INFO L175 Difference]: Start difference. First operand has 37 places, 28 transitions, 90 flow. Second operand 4 states and 433 transitions. [2023-08-30 13:00:18,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 57 transitions, 268 flow [2023-08-30 13:00:18,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 57 transitions, 263 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-30 13:00:18,741 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 111 flow [2023-08-30 13:00:18,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-08-30 13:00:18,742 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, 1 predicate places. [2023-08-30 13:00:18,742 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 111 flow [2023-08-30 13:00:18,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,742 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 13:00:18,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-30 13:00:18,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-30 13:00:18,743 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-08-30 13:00:18,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 13:00:18,743 INFO L85 PathProgramCache]: Analyzing trace with hash 370311715, now seen corresponding path program 1 times [2023-08-30 13:00:18,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 13:00:18,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359250129] [2023-08-30 13:00:18,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 13:00:18,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 13:00:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 13:00:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 13:00:18,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 13:00:18,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359250129] [2023-08-30 13:00:18,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359250129] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 13:00:18,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 13:00:18,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-30 13:00:18,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730057109] [2023-08-30 13:00:18,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 13:00:18,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-30 13:00:18,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 13:00:18,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-30 13:00:18,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-08-30 13:00:18,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 209 [2023-08-30 13:00:18,844 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 111 flow. Second operand has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:18,844 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 13:00:18,844 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 209 [2023-08-30 13:00:18,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 13:00:18,994 INFO L130 PetriNetUnfolder]: 700/1070 cut-off events. [2023-08-30 13:00:18,995 INFO L131 PetriNetUnfolder]: For 756/756 co-relation queries the response was YES. [2023-08-30 13:00:18,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2866 conditions, 1070 events. 700/1070 cut-off events. For 756/756 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4832 event pairs, 293 based on Foata normal form. 12/1068 useless extension candidates. Maximal degree in co-relation 2853. Up to 462 conditions per place. [2023-08-30 13:00:18,997 INFO L137 encePairwiseOnDemand]: 202/209 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2023-08-30 13:00:18,997 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 51 transitions, 247 flow [2023-08-30 13:00:18,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-30 13:00:18,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-30 13:00:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 521 transitions. [2023-08-30 13:00:18,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49856459330143543 [2023-08-30 13:00:18,999 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 521 transitions. [2023-08-30 13:00:18,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 521 transitions. [2023-08-30 13:00:18,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 13:00:18,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 521 transitions. [2023-08-30 13:00:19,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:19,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:19,002 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:19,003 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 111 flow. Second operand 5 states and 521 transitions. [2023-08-30 13:00:19,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 51 transitions, 247 flow [2023-08-30 13:00:19,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 51 transitions, 223 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-30 13:00:19,005 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-08-30 13:00:19,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-08-30 13:00:19,006 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2023-08-30 13:00:19,006 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-08-30 13:00:19,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 13:00:19,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-08-30 13:00:19,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-30 13:00:19,008 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-30 13:00:19,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-08-30 13:00:19,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-08-30 13:00:19,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-30 13:00:19,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-08-30 13:00:19,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-08-30 13:00:19,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-30 13:00:19,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-08-30 13:00:19,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-30 13:00:19,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-30 13:00:19,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-08-30 13:00:19,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-30 13:00:19,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-30 13:00:19,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-30 13:00:19,011 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-30 13:00:19,014 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 13:00:19,014 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 13:00:19,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 01:00:19 BasicIcfg [2023-08-30 13:00:19,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 13:00:19,033 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 13:00:19,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 13:00:19,033 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 13:00:19,034 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 01:00:14" (3/4) ... [2023-08-30 13:00:19,036 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-30 13:00:19,039 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-08-30 13:00:19,039 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-08-30 13:00:19,039 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-08-30 13:00:19,042 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-08-30 13:00:19,042 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-30 13:00:19,042 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-30 13:00:19,042 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-30 13:00:19,068 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 13:00:19,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 13:00:19,069 INFO L158 Benchmark]: Toolchain (without parser) took 5777.55ms. Allocated memory was 73.4MB in the beginning and 161.5MB in the end (delta: 88.1MB). Free memory was 49.4MB in the beginning and 92.0MB in the end (delta: -42.5MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-08-30 13:00:19,069 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 58.7MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 13:00:19,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.67ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 44.0MB in the end (delta: 5.1MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2023-08-30 13:00:19,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.39ms. Allocated memory is still 73.4MB. Free memory was 44.0MB in the beginning and 41.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:00:19,070 INFO L158 Benchmark]: Boogie Preprocessor took 49.25ms. Allocated memory is still 73.4MB. Free memory was 41.4MB in the beginning and 39.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 13:00:19,070 INFO L158 Benchmark]: RCFGBuilder took 737.11ms. Allocated memory is still 73.4MB. Free memory was 39.6MB in the beginning and 48.9MB in the end (delta: -9.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-08-30 13:00:19,070 INFO L158 Benchmark]: TraceAbstraction took 4463.42ms. Allocated memory was 73.4MB in the beginning and 161.5MB in the end (delta: 88.1MB). Free memory was 48.0MB in the beginning and 95.1MB in the end (delta: -47.1MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. [2023-08-30 13:00:19,071 INFO L158 Benchmark]: Witness Printer took 35.50ms. Allocated memory is still 161.5MB. Free memory was 95.1MB in the beginning and 92.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-30 13:00:19,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 58.7MB. Free memory is still 35.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.67ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 44.0MB in the end (delta: 5.1MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.39ms. Allocated memory is still 73.4MB. Free memory was 44.0MB in the beginning and 41.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.25ms. Allocated memory is still 73.4MB. Free memory was 41.4MB in the beginning and 39.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 737.11ms. Allocated memory is still 73.4MB. Free memory was 39.6MB in the beginning and 48.9MB in the end (delta: -9.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4463.42ms. Allocated memory was 73.4MB in the beginning and 161.5MB in the end (delta: 88.1MB). Free memory was 48.0MB in the beginning and 95.1MB in the end (delta: -47.1MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. * Witness Printer took 35.50ms. Allocated memory is still 161.5MB. Free memory was 95.1MB in the beginning and 92.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8s, 121 PlacesBefore, 38 PlacesAfterwards, 113 TransitionsBefore, 29 TransitionsAfterwards, 2560 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 93 TotalNumberOfCompositions, 8941 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3743, independent: 3455, independent conditional: 0, independent unconditional: 3455, dependent: 288, dependent conditional: 0, dependent unconditional: 288, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1371, independent: 1316, independent conditional: 0, independent unconditional: 1316, dependent: 55, dependent conditional: 0, dependent unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3743, independent: 2139, independent conditional: 0, independent unconditional: 2139, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 1371, unknown conditional: 0, unknown unconditional: 1371] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 138, Positive conditional cache size: 0, Positive unconditional cache size: 138, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 828]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 150 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 112 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 257 IncrementalHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 5 mSDtfsCounter, 257 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-30 13:00:19,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE